Music-leaf turner.



J. B. ALBERT.

MUSIC LEAF TURNER.

APPLICATION man 11.21. 191s.

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J. B. ALBERT.

MUSIC LEAF TURNER. APPLICATION min APR .21.1916.

1 ,21 4, 1 1 O'. Patented Jan. 30, 1917.

2 SHEETS-SHEET 2.

JOHN B. ALBERT, OF DANBUBY, CONNIEK'JTICUEA MUSIC-LEAF TURNER.

Application med Aprn 21, 191s. serial No. 92,1118

To all whom t may concern:

Be it known that I, JOHN B. ALBERT, a citizen of the United States,residing at the city of Danbury, county of Fairfield, State ofConnecticut, have invented certain new and .useful lmprovements inMusic-Leaf Tui-ners; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in leafturners and particularly to that type depicted in my prior Patent No.1,166,803, issued January 4, 1916,

which is especially adapted for turning music leaves.

An important object is to provide an improved means, which dispenseswith the metallic pump in my above noted patent, for

ycreating a vacuum m a leaf-turning carrier for holding a leaf thereto.f

A further aim resides in the provision of such a device which Willefficiently operate at the will of the operator, said device beingreadily attached to the music support of a piano, or other music holder.

An additional and equally important object resides in the provision of acollapsible bulb with means for exerting pressure thereon to expel theair therefrom and thus create a vacuum.

The invention further resides in the salient features of construction,arrangements and combinations of parts described in detail in thefollowing specification and succinctly lpointed out in the appendedclaims, the preferred embodiment of the invention being killustrated inthe accompanying drawings wherein- Y Figure 1 is a front elevation of mydevice applied to the upper part of a music support; Fig. 2 is a rearview of the leaf turner alone, a portionr of the carrier being omitted;Fig. 3 is a top plan view thereof; Fig. 4 is a horizontal sectionthereof on line 4 -4 of Fig. 2, and Fig. 5 is va vertical sectionthrough the device on line 5-5 of Fig. 4.

I prefer to mount the present invention at the top or upper portion ofthe usual piano music support 1, as by brackets 2, and inclose part ofthe mechanism in a support or casing 3. i The carrier 4, which istubular, is pivoted at 5 on the casing and provided on its free'outerendwith aaubber cup 6 in which a Specification of Letters Patent.

Apair of segnrengsa 'fpo Pa r :a im.

and fixe/diie reslalftlfoftliejgeai sfan arm 15havingipinfapefisiptsegregation-ile with the vertical anni '1,57v ofa'lbel-ll-cranklever 18, the latter being 'pivotedatjflfl nfsaid casing.A coiled spring fixedt'eftlie shaft 21v of gear 10 and to` theliousng22,integral with the gear, returns the latterto normal position after eachoperation.

A rubber tube or bulb 23 has its opened end expanded over a base 24, andconnecting the interior of the bulb through the base with the tubularcarrier and vacuum cup is a flexible length of tubing 25. The base 24and tubing 25 thus constitute a means of communication between the bulband carrier.

Fulcrumed on a standard 26, upstanding from the top plate of casing 3,is a compression lever 27, which has pivoted on its free end a bearingface 28, the latter being designed to force in the resilient andcollapsible walls of the self-expanding body 23 and thereby expel theair from the latter and the carrier. Thus, it is obvious, that uponrelieving the bulb from the pressure of the compression member 27, thetendency of the bulb to assume its normal shape will create a vacuumwithin the latterandthe carrier sufficient to cause the vacuum cup 6 toadhere to the sheet'of music.

The compression lever 27 is preferably curved and on the convex edgethereof is guided the forked end 29 of a second lever 30 which ispivoted to the casing at 31 and maintainedin normal positionagainstjtlic i wil..

other suitable member (not shown) by rod 39. Each part of the actuatorhas a shoulder 40 cooperating with a spring 41 to hold the actuatorpractically a rigid structure. A pin 42 normally spaced above the arm 34is adapted to engage the latter and through it swing the segmental gearl2 for operating the carrier. above the arm 34 that on exerting adownward pull on the actuator 37, the latter will initially effect acompression or collapsing of the bulb and then a swinging of thecarrier. In this connection, it will be noted that pressure of the lever27 on the bulb must be removed before a vacuum can be formed, and tothis end I provide means for disengaging the hook 3G from the stud 35immediately prior to the pin 42 abutting the arm 34 for effecting aswinging of the carrier. This disengaging means comprises a dog 43pivoted to the upper part of actuator 37 and normally resting on thesupporting link 38. A lug or stop 44 projects from the dog to engage theupper part of actuator 37, as the latter moves downwardly, which stopprevents further relative movement between the pivoted elements.Consequently, continued relative movement between the dog 43 and link 38will shove the hook 36 from over the stud 35 whereupon the bulb willimmediately begin expanding to create a vacuum. Subsequent downwardmovement of the actuator will then effect operation of the carrier.

When the carrier has performed its ofiice it is necessary to destroy thevacuum to release the sheet from the vacuum cup 6 to prevent the latterfrom turning the sheet back. Therefore, in the base 24 and lower end ofthe bulb 23 is provided a vent 45 opening from the communicative meansbetween the bulb and carrier. This vent is initially and normally closedby a valve 46 carried on one end of a lever 47, the latter being pivotedbetween its ends and within the casing as shown in Fig. 4. A spring 48holds the valve normally seated. The larger segment of gear 10 isdesigned to strike the lever 47, when the carrier has performed itsfunction, and thus unseat the valve 46 to destroy the vacuum within thebulb and carrier. The latter is then free of the sheet to return.

From the foregoing it will be observed that upon pulling the actuatordown, four important steps are performed in the following sequence: thecollapsing or compressing of the bulb; the subsequent release of thepressure exerted mechanically on the bulb; the swinging of the carrier;and the destruction of the vacuum previously created. The operation isentirely automatic outside of the depression of the actuator, and thesingle carrier will efciently operate in adhering to successive This pinis so spaced i sheets without the provision of ent carrier for eachsheet. y

The substitution of a rubber bulb for a pump such as is illustrated inmy prior patentI is more economical, the purpose 1t serves being equallyas well performed.

That is claimed is: I

l. In a leaf turner, a support, a swingingly mounted hollow leafcarrier, a selfexpansible collapsible body communicatively connectedwith the carrier for creating a vacuum therein whereby a leaf willadhere to the carrier, and means operable in one continuous directionfor effecting both a collapsing and releasing of the body.

Q. In a leaf turner, a support, a swingingly mounted hollow leafcarrier,a selfcxpansible collapsible body communicatively connected withthe carrier, a carrier-swinging means, means for collapsing' andreleasing the body for creating a vacuum in the carrier whereby a leafwill adhere to the latter, and a common actuator for the last two meansinitially free from the collapsible body.

3. In a leaf'turner, a support, a swingingly mounted hollow leafcarrier, a selfexpansible collapsible body communicatively connectedwith the carrier, means for compressing the body, means for swinging thecarrier, an actuator for the last two means releasably engaging thebody-compressing means, and meansmovable relative to the actuator forreleasing the body-compressing means from the actuator for creating Yavacuum in the carrier whereby a leaf will adhere to the latter.

4. In a leaf turner, a casing, a leaf carrier swingingly mountedthereon, a collapsible bulb, means of communication between the bulb andcarrier whereby on collapsing and releasing pressure from the bulb avacuum will be created in the carrier for causing a leaf to adhere tothe latter, means for collapsing the bulb, and means automaticallyrendering the bulb-collapsing means inoperative prior to movement of thecarrier.

5. In a leaf turner, a casing, a leaf carrier swingingly mountedthereon, a collapsible bulb normally expanded, means of communicationbetween the bulb and carrier whereby on collapsing' and releasingpressure from the bulb a vacuum will be created in the carrier forcausing a leaf to adhere to the latter, and means for successivelycompressing and releasing the bulb and swinging the carrier.

6. In a leaf turner, a rubber bulb, a leaf carrier arm connnunicativelyconnected therewith, and means operable by a single movement in onedirection to compress and release the bulb for creating a vacuouscondition therein and in the carrier whereby a leaf will adhere to thelatter.

7. In a leaf turner, a casing, a leaf carrier an independswinginglymounted thereon, a vacuum cup on the carrier to which a leaf is causedto adhere when a vacuum is created therein, a collapsible vacuumproducer, means of communication between the cup and vacuum producer,means for collapsing and releasing the latter to create a vacuum in thecup, means for swinging the carrier, and actuating means operable in onecontinuous and uninterrupted movement to actuate the last two means.

8. In a leaf turner, a casing, a leaf carrier swingingly mountedthereon, a vacuum cup on the carrier to which a leaf is caused to adherewhen a vacuum is created therein, a collapsible vacuum producer, meansof communication between the cup and vacuum producer, means forcollapsing the latter4 for subsequent relcasement to Acreate a vacuum inthe cup, means for swinging the carrier, and continuously operatingunitary means for successively actuating and releasing the collapsingmeans and subsequently actuating the leaf carrier swinging means. Y

9. In a leaf turner, a rubber bulb, a leaf carrier arm communicativelyconnected therewith, a compression lever normally supported by the bulb,and means releasably engaging the lever for exerting pressure thereon tocompress the bulb and to subsequently remove the pressure therefrom tocreate a vacuum therein and in the carrier whereby a leaf will adhere tothe latter.

10. In a leaf turner, a support, a leaf carrier swingingly disposedthereon, means for swinging the carrier, and a compressibleself-expanding body communicatively connected with the carrier forcreating a vacuum in the carrier whereby a leaf will adhere thereto, andmeans for successively compressing the body and operating the carrierswinging means in a single continuous operation.

11. In a leaf turner, a rubber bulb, a leaf carrier arm communicativelyconnected therewith, a compression lever normally supported by the bulb,means releasably engaging the lever for exerting pressure thereon tocompress the bulb and to subsequently remove the pressure therefrom forcreating a vacuum in the carrier whereby a leaf will adhere to thelatter, and means operable by the first means subsequent to the releaseof the compression lever for swinging the carrier arm.

12. In a leaf turner, a support, a self-eX- panding collapsible body, aleaf carrier movably mounted on the support, meansi communicativelyconnecting the carrier and body whereby a vacuum created in the bodywill be created in the carrier also for causing a leaf to adhere to thelatter, said means being provided with a vent, means initially closingthe vent, and means for operating the carrier and opening the vent todestroy the vacuum, said last means being initially free of thevent-closing means.

13. In a leaf turner, a support, a self-expanding collapsible body, aleaf carrier movably mounted on the support, means communicativelyconnecting the carrier and body whereby a vacuum created in the bodywill be created in the carrier also for causing a leaf to adhere to thelatter, said means being provided with a vent, a valve initially closingthe vent in said means, means initially free of the valve for operatingsuccessively the carrier and opening the valve, and means for collapsingthe body and operating the last means.

14. In a leaf turner, a support, a leaf carrier swingingly mountedthereon, a. gear part fixed to the pivoted end of the carrier, a gearjournaled on the support and meshing with the gear part of the carrier,a bulb, means communicatively connecting the bulb and carrier whereby avacuum created in the bulb will be formed also in the carrier whereby aleaf will adhere to the latter, said means being provided with a ventwhich, when opened, eliminates the vacuum, a valve initially closing thevent in said means and adapted to be opened by said gear, and means foroperating the gear.

15. In a leaf turner, a casing, a bulb secured at its open end theretoand having its compression end outstanding from the casing, acompression member pivoted to the casing and normally resting on thecompression end of the bulb, a hollow leaf carrier communicativelyconnected with the bulb, and means engaging and releasing thecompression member for operating the latter to create a vacuouscondition in the bulb and leaf carrier whereby a leaf will adhere to thelatter.

16. In a leaf turner, a support, a leaf carrier swingingly mountedthereon, a gear part fixed to the pivoted end of the carrier, a gearjournaled on the support and meshing with the gear part of the carrier,a bulb, means communicatively connecting the bulb and carrier whereby avacuum created in the bulb will be formed also in the carrier to cause aleaf to adhere to the latter, said means being provided with a ventwhich,

Then opened, eliminates the vacuum, a valve initially closing the ventin said means and adapted to be opened by said gear, a swinginglymounted segmental gear meshing with the first gear for rotating thelatter, a pivoted bulb-compressor, and means for swinging thebulb-compressor and segmental gear.

17 In a leaf turner, a support, a leaf carrier swingingly mountedthereon, a gear part fixed to the pivoted end of the carrier, a gearjournaled on the support and meshing with the gear part of the carrier,a bulb, means communicatively connecting the bulb and carrier whereby avacuum created in the bulb will be formed also in the carrier to cause aleaf to adhere to the latter, said means being provided with a Ventwhich, when opened, eliminates the Vacuum, a valve initially closing thevent in said means and adapted to be opened by said gear, a swinginglymounted segmental gear meshing with the first gear for rotating thelatter, a pivoted bulb compressor, means to swing the bulbl compressorincluding a releasable hook member, and means operable by said lastmeans subsequent to being released from the bulb compressor for swingingthe segmental gear. Y

18. In a leaf turner, a support, a leaf earrieiswingingly mountedthereon, a gear part fixed to the pivoted end of the carrier, a gearjournaled on the support and meshing with the O'ear part of the carrier,a bulb, means eommunieatively connecting the bulb and carrier whereby aVacuum created in the bulb will be formed also in the carrier Copies ofthis patent may be obtained for to cause a leaf to adhere to the latter,said means being provided with a Vent which, when opened, eliminates:the Vacuum, a Valve initially closing the Vent in said means and adaptedto be opened by said gear, a swingingly mounted. segmental gear meshingwith the lirst gear for rotating the latter, a pivoted bulb Compressor,means to swing the bulb Compressor including a releasable hook member, alink supporting the hook member from the support, a kicker dog carriedby the hook member for engaging the link, and means operable by saidlast means subsequent to being released from the bulb oompressor forswinging the segmental gear.

In testimony whereof I aiiiX my signature in presence of two witnesses.

JOHN B. ALBERT. Witnesses JOHN J. DADLER, THOMAS E. MoCLosiinY.

ve cents each, by addressing 'the Commissioner of Patents, Washington,D. G.

